Improvement in fire-escapes



I. H. ALLEN. FIRE-ESCAPE.

No. 192,403. Pa te nted June 26,1877.

ATTORNEYS.

N.PETERS, FHOTO-LITHUGRAPHER, WASHINGTDN D C,

TATES FFICE.

IMPROVEMENT IN FlRE-ESCAPES.

Specification forming part of Letters Patent No. l92,103, dat J n 1 appca filed May 28, 1877.

To all whom it may concern:

Be it known that I, ISAAC H. ALLEN, of Black Creek, in the county ofWelland, Province of Ontario, and Dominion of Canada, have invented anew and Improved Fire Escape Ladder, of which the following is aspecification This invention has relation to ladders which areespecially designed for enabling persons toescape from the upper storiesof burning buildings; and the nature of my invention consists in aflexible or folding ladder in which the rounds or foot-rests are securedto strips of webbing Woven in such manner that it affords properstrength and durability at points where the rounds pass through it, aswill be hereinafter explained.

In the annexed drawings, Figure 1 is a front view of my ladder. Fig. 2is an end view, and Fig. 3 is a modification.

Similar letters of reference indicate corresponding parts.

A A designate the side supports of the ladder, and B B are the roundsthereof, which latter may be made of hard wood, and they have studs orarms a fixed into their ends for the purpose of having them stand oftfrom a wall far enough to afford good foot-hold to a person ascending ordescending.

The top round B is longer than the others,

Q for the purpose of readily securing it to a window.

The side supports are made of webbing, which, is woven tubular, or ofdouble thickness, with openings transversely through it at properintervals .to receive the rounds, as shown at Fig. 3.

In the process of weaving the webbing, I shall thicken it so as to makeit strongest at those points where it is subjected to the most Wear andstrain. This may be done by stitching strips of cloth to the webbing, asshown in Fig. 2, at b, but I prefer to adopt the plan above described.

It will be seen that the flexible tubular side strips A A will sustainthe rounds B on both sides when they are nailed or otherwise fixed intheir places, and that they prevent the rounds from tilting.

Having thus described my invention, 1 claim as new and desire to secureby Letters Patent- A flexible fire-escape ladder composed of sidesupports A A for the rounds B, made of tubular webbing, strengthened,substantially as described.

ISAAC H. ALLEN.

Witnesses:

G. H. WILLIAMS, J OHN G. REILLY.

